US Bridges

Jefferson Road over Little Muskegon River

Fair

Mecosta County, Michigan · East of Morley · Structure no. 000000000006757

Built
1969
56 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
1,300
2019 count
Owner
County
County Highway Agency

About this bridge

Jefferson Road over Little Muskegon River is a prestressed concrete box beam or girders - multiple carrying Jefferson Road over Little Muskegon River in Mecosta County, Michigan. It was built in 1969, so it is 56 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,300 vehicles a day, roughly 10% of them trucks, projected to reach 1,510 by 2039. The structure is 64 ft (19.5 m) long and 37 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesJefferson Road
CrossesLittle Muskegon River
LocationEast of Morley
RouteCounty Highway 5406
Coordinates43.49036, -85.43154
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span58 ft (17.6 m)
Deck width37 ft (11.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2019)
Projected traffic1,510 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jefferson Road over Little Muskegon River built?

It was built in 1969, making it 56 years old in 2025.

What condition is Jefferson Road over Little Muskegon River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Jefferson Road over Little Muskegon River carry?

About 1,300 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Jefferson Road over Little Muskegon River?

The structure is 64 ft (19.5 m) long with a longest span of 58 ft (17.6 m) and a deck 37 ft wide.

Who owns Jefferson Road over Little Muskegon River?

It is owned by the County Highway Agency.